Title 48, Chapter 9, Section 35
Every motor carrier subject to the road tax shall be entitled to a
credit on the tax equivalent to the amount of motor fuel tax imposed
by Article 1 of this chapter on all motor fuel purchased by the
motor carrier during the quarter within this state for use in
operations either within or outside this state when the motor fuel
tax imposed by this state has been paid by the motor carrier.
Evidence of the payments of the motor fuel tax in the form required
by the commissioner shall be furnished by each motor carrier
claiming the credit allowed. When the amount of the credit to which
any motor carrier is entitled for any quarter exceeds the amount of
the road tax for which the carrier is liable for same quarter, the
excess may be allowed pursuant to regulations promulgated by the
commissioner as a credit on the road tax for which the motor carrier
would be otherwise liable for the subsequent quarter or quarters.
Allowed credits may be carried forward and utilized no later than
the succeeding two calendar years.